The ABCs of Software Defined Radio SDR Made Easy! Amateur Radio operators are finding themselves incorporating Software Defined Radio –the latest big step in radio communications– into their operational activities. From low-end QRP rigs to the most powerful radios, they’re all using SDR technology. The ABC’s of Software Defined Radio is an introductory guide to…
The year 2012 marks the 87th anniversary of the founding of the International Amateur Radio Union (IARU). To mark this occasion, the IARU and its more than 160 Member-Societies will celebrate World Amateur Radio Day on April 18. For many years, the IARU has declared a theme for each World Amateur Radio Day. The theme…
A brief ARRL’s overview of four popular generators. For the complete review, see the June 2012 issue of QST magazine. ARRL HQ
NTIA: No Objection to Additional Data Modes on 60 Meters In response to requests for clarification from the ARRL, the National Telecommunications and Information Administration (NTIA) has confirmed that it has no objection to the use of a broader range of data emissions by amateurs on the five 5 MHz frequencies on 60 meters. ARRL’s…
HBC3-A a DSP beauty that covers 12, 10 and 6 meters wins the ARRL homebrew challenge! The previous ARRL Homebrew Challenges have been to build a 5 W PEP 40 meter sideband and CW transceiver (Homebrew Challenge I) and then a 50 W linear amplifier to follow it (Homebrew Challenge II). This third challenge moved…